Stamped grid comprising a fastening element

ABSTRACT

A stamped screen according to the invention has at least one fastening element integral with the screen and is fastened to the associated component without further accessories at the same time as it is inserted into place.

PRIOR ART

[0001] The invention is based on a stamped screen with fastening element as generically defined by the preamble to claim 1.

[0002] DE 198 58 231 A1 has disclosed a stamped screen, which is inserted into a housing cover and is fastened to the housing cover by means of ultrasonic welding or warm caulking of positioning pins provided for this purpose. This means that in addition to inserting the stamped screen into the housing cover, another manufacturing step is required, namely the ultrasonic welding or the warm caulking and the devices required for them.

ADVANTAGES OF THE INVENTION

[0003] The stamped screen with the fastening element according to the invention, with the characterizing features of claim 1, has the advantage over the prior art that the stamped screen is simply fastened to a component in the same manufacturing step as being inserted into place.

[0004] Advantageous modifications and improvements of the stamped screen disclosed in claim 1 are possible by means of the measures taken in the dependent claims.

[0005] An advantageous embodiment of the fastening of the fastening element in the component is achieved if the fastening element produces a frictional engagement with the component.

[0006] In order to advantageously achieve a frictional engagement between the fastening element and the component, the fastening element has a spring action, for example due to the fact that at least part of the stamped screen has a U-shaped cross section.

[0007] If the fastening element is of one piece with the stamped screen, then the stamped screen and fastening element can be advantageously produced in one step.

DRAWINGS

[0008] An exemplary embodiment of the invention is shown in simplified fashion in the drawings and will be explained in detail in the subsequent description.

[0009]FIGS. 1a & b show a stamped screen according to the invention when installed, and

[0010]FIG. 1c shows the stamped screen according to the invention when not installed.

DESCRIPTION OF THE EXEMPLARY EMBODIMENT

[0011]FIG. 1a shows a top view of a part of a stamped screen 1 according to the invention.

[0012] The stamped screen 1 is fastened to a component 3. The fastening is produced by virtue of the fact that the stamped screen 1 has at least one fastening element 5, which is, for example, of one piece with the stamped screen 1.

[0013] The fastening element 5 can, for example, be embodied in the form of a pin and/or hook so that upon installation of the stamped screen 1 into the component 3, the hook hooks into the component 3 and thus fastens the stamped screen 1 to the component 3.

[0014] However, the fastening element 5 can also, as in this exemplary embodiment, produce a frictional engagement with the component 3.

[0015] In this connection, the fastening element 5 has a spring action. The spring action can act in numerous ways.

[0016] For example, the stamped screen 1 is at least partially embodied as straight in a longitudinal direction 11 and, as a fastening element 5, has at least one strip 6, which extends crosswise, e.g. perpendicular, to the longitudinal direction 11 of the stamped screen 1, in a lateral direction 13, beyond both longitudinal sides of the stamped screen 1.

[0017]FIG. 1b depicts the spring action of the strip 6 in a section along the line A-A. Part of the stamped screen 1 in the region of the strip 6 has a cross section in a U-shape 9, which produces a frictional engagement with the walls 15 of a recess 7 in the component 3.

[0018] When the fastening element 5 is not installed, which is depicted in FIG. 1c, the cross section 13 of the U-shape 9 is larger than the width of the recess 7. The U-shape 9 must therefore be compressed when the stamped screen 1 with the fastening element 5 is inserted into the recess 7. When the stamped screen 1 is then disposed in the recess 7, a spring action of the stamped screen 1 causes the fastening elements 5 to press against side walls 15 of the recess 7 and thus to produce a frictional engagement between the fastening element 5 and the recess 7.

[0019] The recess 7 can also have projections in the lateral direction on the side walls 15 so that the U-shape snaps into the recess 7.

[0020] In this exemplary embodiment, the stamped screen 1 has a U-shape 9 in two places. However, it is also conceivable for the U-shape 9 to extend over a longer segment, i.e. for a U-shape 9 to be embodied, for example, between the upper fastening elements and the lower fastening elements in FIG. 1a, i.e. for a U-shaped channel to be embodied on the stamped screen 1.

[0021] For example, the stamped screen 1 is part of an electrical circuit of an electric machine. Then for example, the component 3 is a part of a housing of an electric machine or an electric drive unit. 

1-5. (Cancelled).
 6. A fastening device with a stamped screen for an electrical circuit, which is fastened to a component, the stamped screen (1) comprising at least one fastening element (5) that is of one piece with the stamped screen (1), the at least one fastening element (5) including means providing a spring action producing a frictional engagement with the component (3).
 7. The stamped screen according to claim 6, wherein the component (3) comprises a recess (7), and wherein the stamped screen (1) is disposed int eh recess (7) and produces a frictional engagement with the walls (15) of the recess (7).
 8. The stamped screen according to claim 6, wherein the stamped screen (1) has a U-shape (9), which when the fastening element (5) is not installed, has a width greater than the width of the recess (7).
 9. The stamped screen according to claim 7, wherein the stamped screen (1) has a U-shape (9), which when the fastening element (5) is not installed, has a width greater than the width of the recess (7).
 10. The stamped screen according to claim 6, wherein the stamped screen (1) is part of an electrical circuit of an electric machine.
 11. The stamped screen according to claim 7, wherein the stamped screen (1) is part of an electrical circuit of an electric machine.
 12. The stamped screen according to claim 8, wherein the stamped screen (1) is part of an electrical circuit of an electric machine.
 13. The stamped screen according to claim 9, wherein the stamped screen (1) is part of an electrical circuit of an electric machine.
 14. The stamped screen according to claim 6, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 15. The stamped screen according to claim 7, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 16. The stamped screen according to claim 8, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 17. The stamped screen according to claim 9, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 18. The stamped screen according to claim 10, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 19. The stamped screen according to claim 11, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 20. The stamped screen according to claim 12, wherein the component (3) is part of a housing of an electric machine or an electric drive unit.
 21. The stamped screen according to claim 13, wherein the component (3) is part of a housing of an electric machine or an electric drive unit. 